Kota Japan 3000–8000 Grit Whetstone Knife Sharpening Stone

Restore blades to mirror-finish sharpness with the Kota Japan dual-grit whetstone. Perfect for chefs, woodworkers, and home cooks who demand precise, long-lasting edges. This water stone (no oil required) combines a 3000 grit side for refining and an 8000 grit side for ultra-fine polishing.

• Dual grit 3000 / 8000 — refine and polish in one compact stone
• Premium corundum (aluminum oxide) construction for consistent hardness and long life
• Water stone: soak 10–15 minutes, no messy oil required
• Includes non-slip silicone holder for safe, stable sharpening and consistent angles
• Suitable for kitchen knives, pocket knives, scissors, straight razors, and woodworking tools

Why choose this whetstone

• Achieve razor-sharp precision and a polished edge with fewer passes
• Professional-grade results at home or in the workshop
• Durable, crack-resistant material engineered for repeat use
• Easy cleanup and low maintenance — just water and a quick dry

How to use (quick steps)

1. Soak the stone in water for 10–15 minutes until bubbles stop rising.
2. Place stone in the included non-slip holder on a flat surface.
3. Start on the 3000 grit side to refine the edge (maintain a consistent angle).
4. Flip to the 8000 grit side to hone and polish to a mirror finish.
5. Rinse the stone and blade, then dry thoroughly.

Care & maintenance

• Rinse after each use and air dry completely before storage
• Flatten periodically with a lapping plate or flattening stone if needed
• Store in a dry place away from extreme temperatures

Specifications

• Part Number / Model: KJ003
• Grit: 3000 / 8000 (dual-sided)
• Material: Premium corundum (aluminum oxide)
• Type: Water stone (no oil required)
• Includes: Non-slip silicone holder
• Color: White, Rust

Get professional sharpening performance with the Kota Japan 3000–8000 whetstone — precision edges, lasting durability, and easy water-only maintenance.